[PATCH 0/5] ARM: perf: split up perf_event.c by architecture

[Jean Pihet]

Will,

On Mon, Nov 15, 2010 at 6:30 PM, Will Deacon <will.deacon at arm.com> wrote:
> Jean - is this a sensible email address to contact you with? Your old
>       mvista one has stopped working.
Yes this one is the new one to use.

>
> Our perf_event.c is becoming rather cumbersome as more PMUs are added.
> I know of at least two more (v7-based) PMUs that will be added in the
> coming months which will push this file to the ~4KLOC region.
>
> Since most updates to this file are to do with changes to the generic
> Linux perf API, let's do what x86 does and split out the separate PMU
> implementations into their own files. I've chosen to split it by
> architecture revision: xscale, v6 and v7. Since the v7 PMU registers
> are architected, this means that new v7 implementations just need to
> describe their event mappings.

That makes sense!

>
> Comments welcome.
>
> Cc: Jamie Iles <jamie.iles at picochip.com>
> Cc: Jean Pihet <jean.pihet at newoldbits.com>

Thanks!


>
> Will Deacon (5):
>  ARM: perf: consolidate common PMU behaviour
>  ARM: perf: avoid exposing internal stop function for v6 PMU
>  ARM: perf: add _init() functions to PMUs
>  ARM: perf: encode PMU name in arm_pmu structure
>  ARM: perf: separate PMU backends into multiple files
>
>  arch/arm/kernel/perf_event.c        | 2448 +----------------------------------
>  arch/arm/kernel/perf_event_v6.c     |  674 ++++++++++
>  arch/arm/kernel/perf_event_v7.c     |  906 +++++++++++++
>  arch/arm/kernel/perf_event_xscale.c |  809 ++++++++++++
>  4 files changed, 2423 insertions(+), 2414 deletions(-)
>  create mode 100644 arch/arm/kernel/perf_event_v6.c
>  create mode 100644 arch/arm/kernel/perf_event_v7.c
>  create mode 100644 arch/arm/kernel/perf_event_xscale.c
>
>